OUFR Versus FFR for Functional Assessment of Coronary Artery Stenosis in Patients With Unstable Angina.

ABSTRACT:

Background

Hybrid intravascular ultrasound-optical coherence tomography (IVUS-OCT) imaging can integrate both advantages. Optical ultrasonic flow ratio (OUFR) was recently developed for functional assessment.

Objectives

This study aimed to verify the diagnostic performance of OUFR using fractional flow reserve (FFR) as the reference standard.

Methods

From February 2023 to June 2023, 80 patients (126 vessels) with unstable angina pectoris were assessed with FFR and either hybrid IVUS-OCT or stand-alone IVUS imaging before percutaneous coronary intervention in a prospective series. OUFR based on OCT alone (OUFR_O) or based on both (OUFR_OI) were derived from hybrid IVUS-OCT imaging in 61 patients (86 vessels). OUFR based on IVUS alone (OUFR_I

SUBMITTER: Zhao J 

PROVIDER: S-EPMC11840269 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature